Drilling-machine.



P. P. AU BUCHONL DRILLING MACHINE. APPLIGATIOH FILED M'AB..15, 1911.l,@%5,2 %6. Patented Nov. 26, 1912.

3 SHEETS-SHEET 1.

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P. P. AU BUGHON.

DRILLING MACHINE.

Patented Nov. 26, 1912.

3SHEETS-SHEET 2.

APPLIGATIQN FILED MAR. 15, 1911.

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P. 1?. AU EUGENE.

DRILLING MACHINE.

AZZLIOATIOZI FILED MAX. 1.5, 1911. g gggggg 123w. 1912.-

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( naw/x 504 f eld llfifl llll) tdlr t PETER AUBUCHON,

F FRENCH VILLAGE, MISSOURI.

DRILLING-MACHIN E.

Specification of Letters ream.

Patented Nov. 26, 1912.

Application filed March 15, 1911. Serial No. 614,682.

. To all whom it may consent:

Be it known that 1, 'PETER PERRY AU Buonon, a citizen of the UnitedStates, residing at French. Village, in the county of Shhrancis andState of Missouri, have invented certain new and'useful Improvements inDrilling-ltfachines, of which the following is a specification,reference being had to the accompanying drawings.

lli'y invention relates to new and useful improvements in machinesused-in the metal workin industry and more-particularly to a drillingmachine, and the invention has for its primary object a simple, durableand eflicient construction of an apparatus of this character, the partsof which maybe cheaply manufactured, and readily assembled andinstalled, and which will require practically no attention to maintainits proper running order. 1

The invention also aims to generally improve this class of devices andto render them more useful and commercially desirable. i

Another object is to provide in connection with the drilling mechanism ameans for manually raising and lowering the same.

With these and other objects in view, my invention consists of the noveldetails of construction. combination and arrangement of parts as will behereinafter referred to and more particularly pointed out inthespecification and claims.

In the accom anying drawings forming part of "this application Figure lis a side elevation of the machine: Fig. 2 a front elevation l'liui'oof;Fig. 3 is a detail porspcctive view of the means for raising andlowering the drill; l'iig. l is'a dot ail section showing the drillshaft and work rest therefor; Fig. 5 is a detail section of a portion ofthe means for ra ising and lowering the drill. and Fig. 6 a detailsectional. view.

in carrying out my invention, 1' shall refer to the drzuvings in whichsimilar, reference characters denote corresponding parts throughout theseveral views and in which 1 indicates a frame of cast iron and ofsuliicient size to carry a u'lachine of this character having rotatablymountedt-herein a shaft 2, which shaft carries an enlarged lly orbalance wheel 3. A pitl'uan 4- has one end thereof pivotally connectedto a crank on the fly wheel 3 and the other end thereof pivotallyengaged with one end of the foot pedal 5, the said pedal being mountedon a shaft 6 on the lower part of the frame 1. It will be seen that asthe pedal is operated by the foot, that the fly wheel will be rotated,and in order to providefor the operation of the machine other thanmanually, a belt pulley 7 is provided on the shaft 2, so that wheneverdesired, thepitmari'd may be disconnected from the wheel and any sourceof power applied to the said pulley.

Carried on the fly wheel- 3 is a sprocket wheel 8 over which extends achain 9, said chain also extends over formed upon one face of a beveledgear 10, said combined gear and sprocket being mounted upon a shaft 11which is journaled within the machine frame 1 and extends transverselythereof. An additional shaft 19 rotatably mounted in bearing boxescarried by a supplemental frame 1 formed integral with the main frame 1and extending vertically of said frame having adjustably mounted on thelower gear 20 which is adapted to gear portion of the combined sprocket10, and as the said able on the shaft 19, it will same may move intoposition, at will. Mounted on the upper end of the shaft 19 is anadditional 21 which meshes with a gear 22 carried at one end of anadditional horizontal shaft 23. This last referred to horizontal shaftis also rotatably mounted in bearings car ried by the supplemental frame1' and has mounted upon the opposite end thereof a bevel gear 24. whichmeshes with a similar gear carried on a drill shaft 26. The gear 24. isadjustably mounted on the shaft 23 and the gear 25 is splincd to thedrill shaft 26, said last referred to shaft extending vertically of thesupplemental frame and being rotatably mounted in the arms 27 formedllllitlgl'fil with thesaid supplemental frame. On the lower end of theshaft 26 is removably secured a sleeve or the like 28 in which iscarried a drill 29 or any other desired tool and the upper end of saidshaft is joined to the lever end of a rack 30 by means of a union 31,the purpose, of which will be hereinaftel" described. Thesupplementalframe is provided with an extension 32, through the arms of which extendsaid rack 30 and alsomounted in the said arms is an the gear teeth meshwith the bevel gear and gear 20 is adjustbe seen that the and outofeffective end thereof the bevel I bevel gear additional vertical shaftarrying a worm screw 8d which meshes with the teeth of the rack 30, thelower end of the shaft 33, being provided with a bevel gear 35 whichmeshes with a similar gear 36 carried on the horizontal shaft 557. Thislast referred to shaft- 37 is rotatably mounted between the extension 32and a casting formed thereon and mounted on said shaft is a handoperated wheel 38, whereby when the same is rotated, said drill shaftwill be raised and lowered. In view of this latter describedconstruction and the fact that the gear 25 is keyed to the shaft 20, itwill be appreciated that the rotation of the hand wheel 38 will raiseand lower the drill shaft 26 without effecting the gear 25.

A wheel 33 is fixed upon the shaft 23 and has formed in the peripherythereof a spirally arranged slot the purpose of which will be laterdescribed. The lever 40 is fulcrumed in its length to the extension 32and one end of said lever is provided with a roller ll which is adaptedto operate within said slot 39 while the upper or opposite end of thelever 40 is provided with a spring actuated pawl 42 being normallyheld-into engagement with the teeth of the ratchet or the like l3carried by the shaft 37.

It will be appreciated from this construction that as the shaft isrotated. so as to rotate the shaft 26, the lever 40 will be oscillatedso that the pawl 42 carried thereon will engage the various teeth of theratchet 43 and rotate the said ratchet, which in turn, directly lowerssaid drill shaft 26. When the drilling operation has been completed, thepawl 24 is moved from its effective position with. the ratchet an f dthe hand wheel 38 is then turned manually to raise the drill shaft 26.

Extending from one of the arms 27 formed on the supplemental frame 1 isan arm l l upon which is adjustably mounted the ordinary work rest l5and the said arm 4a is disposed adjacent the drill rod 26 so that therest will retain the work upon which the drill 29 is to act in the usualmanner.

Although I have stated throughout the specification that the variousbevel gears which mesh with one another so as to operate the variousparts of the machine are adjustably mounted on the shafts by means ofcollars and set screws, itwill be understood that clutch mechanism mayalso be rovided to perform the same function without departing from theinvention.

It is also to be noted that whereas I have illustrated a simple andpreferred embodiment of the present invention it is of course to heunderstood that other minor details in changes as to form, constructionand operation may be resorted to. that come within the scope of thepresent claims without departing from the spirit thereof or sacrificingthe efficiency of the same.

What I claim is 1. In a machine of the class described, comprising aframe, a supplemental frame mounted thereupon, a pair of arms extendinghorizontally from said supplemental frame and having a verticallyextending drill shaft rotatably mounted within bearings formed in theouter ends of said arms, a rack connected to said shaft, a second pairof arms made integral with the said supple mental frame and providedwith squared.

openings for receiving said rack, a depending arm formed integral. withthe lowermost arm and connecting the main frame for holding a tool rest,and ratchet teeth formed upon the lastmentioned arm, substantially asand for the purpose described.

2. The combination of a machine of the character described, comprising aframe, a supplemental frame mounted thereupon, a drill shaft rotatablymounted within said supplemental frame, ed within said supplementalframe and connected to; said shaft, a transverse horizontally extendingshaft mounted within said supplemental frame, a vertically extendingshaft mounted in said frame, means for connecting said transverse andvertically extending shafts, a worm screw mounted on said vertical shaftand meshing with said rack, a ratchet wheel mounted on said transverseshaft, a vertically extending lever pivotally mounted upon saidsupplemental frame, a sprin pressed pawl mounted in one end (if sailever for engagement with said ratchet wheel, means for rotating said arack slidably mount drill shaft and for operating the opposite end ofsaid lever, whereby the said shaft may also be raised and lowered.

In testimony whereof I hereunto affix my signature in the presence oftwo witnesses.

PETER PERRY AUBUCHON. Witnesses:

Ann Goanon, P. W. Evans.

